ir/lower/lower_builtins.c:149: libFirm panic in lower_builtin: Can't lower Builtin node of kind Builtin T[111:13]
libfirm: 6cba223
000.c [^] (1,257 bytes) 2013-08-01 10:37 test.c [^] (85 bytes) 2013-09-13 10:12 | Anonymous | Login | Signup for a new account | 2023-03-20 17:01 CET |
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| ID | Category | Severity | Reproducibility | Date Submitted | Last Update | |||||||
| 0000110 | [cparser] firm graph generation | minor | always | 2013-08-01 10:37 | 2013-09-13 10:12 | |||||||
| Reporter | luzero | View Status | public | |||||||||
| Assigned To | ||||||||||||
| Priority | normal | Resolution | open | |||||||||
| Status | confirmed | Product Version | ||||||||||
| Summary | 0000110: bad error reporting in case of missing builtins | |||||||||||
| Description |
cparser -m32 -std=c99 -pthread -g -c -o out.o 000.c ir/lower/lower_builtins.c:149: libFirm panic in lower_builtin: Can't lower Builtin node of kind Builtin T[111:13] |
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| Additional Information |
cparser: e038ad4 libfirm: 6cba223 |
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| Tags | No tags attached. | |||||||||||
| Attached Files |
000.c [^] (1,257 bytes) 2013-08-01 10:37 test.c [^] (85 bytes) 2013-09-13 10:12 |
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Notes |
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(0000159) zwinkau (manager) 2013-08-01 16:27 |
Basically, libfirm does not support __sync_val_compare_and_swap. Sad, but only a GCC extension: http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Atomic-Builtins.html [^] Nevertheless, a nice error message should be reported instead of a panic. |
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(0000161) Matze (administrator) 2013-08-01 23:39 |
actually we do support it, but only if there is hardware support for it. So you need to use at least -march=i686. I will leave this bug report open, because obviously we should fail in a much nicer way (and/or generate a compilerlib call) if hardware support is missing. |
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(0000175) Andreas Fried (reporter) 2013-09-13 10:12 |
test.c is a reduced test case for this bug. |
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Issue History |
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| Date Modified | Username | Field | Change |
| 2013-08-01 10:37 | luzero | New Issue | |
| 2013-08-01 10:37 | luzero | File Added: 000.c | |
| 2013-08-01 16:27 | zwinkau | Note Added: 0000159 | |
| 2013-08-01 23:39 | Matze | Note Added: 0000161 | |
| 2013-08-01 23:39 | Matze | Status | new => confirmed |
| 2013-08-01 23:39 | Matze | Summary | libFirm panic in lower_builtin => bad error reporting in case of missing builtins |
| 2013-08-01 23:40 | Matze | Severity | major => minor |
| 2013-09-13 10:12 | Andreas Fried | File Added: test.c | |
| 2013-09-13 10:12 | Andreas Fried | Note Added: 0000175 | |
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